/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.iceberg.orc;

import org.apache.hadoop.hive.ql.exec.vector.ColumnVector;

public interface OrcValueReader<T>
{
    default T read(ColumnVector vector, int row)
    {
        int rowIndex = vector.isRepeating ? 0 : row;
        if (!vector.noNulls && vector.isNull[rowIndex]) {
            return null;
        }
        else {
            return nonNullRead(vector, rowIndex);
        }
    }

    T nonNullRead(ColumnVector vector, int row);

    default void setBatchContext(long batchOffsetInFile)
    {
    }
}
